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Mo Abualruz.

yes, that's really the tagline ↘
STAFF-FLAVORED ENGINEER · OCCASIONAL EM · SYSTEM WHISPERER

I build backends that other engineers reluctantly admit are fine. I lead teams that ship things that don't fall over. I've debugged distributed systems at 3am on three continents — and lived to tell the tale, though I mostly tell it in post-mortems.

Mo
AMMAN · ISMAILIA · HAMBURG AR · EN · DE EST. 2014 REF · 001
Memo and pencil emoji for the Writing index page listing articles and essays by Mo Abualruz.
Memo emoji © Google Inc. (Noto Emoji), Apache 2.0
APR 2026

The only latency budget I've ever stuck to

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MAR 2026

Multi-tenant recruitment platforms, or how I learned to love identity

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MAR 2026

Running a local LLM stack inside your actual engineering pipeline

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FEB 2026

Everything I know about on-call, in one page

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JAN 2026

Why I run five CLI agents, not one

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DEC 2025

Against the second system effect (again)

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NOV 2025

Wikipedia runs on boring code, and that's the lesson

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OCT 2025

How I learned to stop worrying and love the monolith

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SEP 2025

AI-assisted engineering is a new collaborator model, not autocomplete

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AUG 2025

Your design doc is actually a political document

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JUL 2025

Event-driven architectures that actually shipped

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JUN 2025

Interview questions that are just trivia in a trench coat

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MAY 2025

MUMPS is not a joke, and it runs your pharmacy

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APR 2025

Healthcare software is mostly paperwork you can't see

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MAR 2025

Fulcrum: the agent control plane I built because others didn't fit

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FEB 2025

The onboarding doc I wish I'd had at 22

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JAN 2025

Event-driven credit assessment: what it actually means

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DEC 2024

Playing Captain

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NOV 2024

Founding AFAQ: What It Takes to Ship an EHR at 27

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OCT 2024

What HL7 Integration at a Cancer Centre Actually Looks Like

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SEP 2024

HAKEEM: Rolling Out a National EHR at 22

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AUG 2024

I wrote MUMPS in VistA's Pharmacy package

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JUL 2024

What multi-tenant actually means when governments use it

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JUN 2024

TCL/TK in production in 2018

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MAY 2024

GWT + Spring Boot: a 2013 retrospective

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APR 2024

Telecom billing, GWT, and why Salesforce hates you

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MAR 2024

From Gaming Center Net-Admin to Architect

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FEB 2024

Teaching Open Source at 22 in Amman

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JAN 2024

Java 6 to 17: what each version actually changed

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JUL 2020

Building prescription software during a pandemic

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MAY 2020

Integrating Mobile.de, Amazon, and eBay in eight weeks

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